fix: empty string when new newline at the end of stdin (#96)

The code reads the token from `stdin` until newline. If there is no
newline, it counts the content as empty string.

We use `bufio.NewReader` with `reader.ReadString('\n')` which "reads
until the first occurrence of delim in the input". When it can't find a
newline character before the stream ends we return with an error and an
empty string.

Fix: As `reader.ReadString` returns with the content before the error in
all cases, we can return with the content even if we meet an error.

Note: We should check if the error was EOF on caller side everywhere.

Fixes #95

References:
* #95

Signed-off-by: Efertone <[email protected]>

internal/terminal/terminal.go

@@ -36,7 +36,7 @@ func (t Terminal) Read(prompt string) (string, error) {
 
 	text, readErr := reader.ReadString('\n')
 	if readErr != nil {
-		return "", fmt.Errorf("error reading from input: %w", readErr)
+		return text, fmt.Errorf("error reading from input: %w", readErr)
 	}
 
 	text = strings.TrimSpace(text)